Answers to August 2009 Mystery Tools

What-Is-It?

Harrow-disc sharpener, patented by Herman R. Herschel, Peoria, Ill., assignor to the R. Herschel Mfg. Co, Peoria, Jan. 14, 1896.
B. Harrow-disc sharpener, patented by Herman R. Herschel, Peoria, Ill., assignor to the R. Herschel Mfg. Co, Peoria, Jan. 14, 1896.
Patent 552,999